Activated my Roamio yesterday, and everything works fine except YouTube. Whenever I try to use it I get error code v301 with the URL http://www.tivo.com/support/v301 which leads to nothing. It's not my internet connection, because Huku and Netflix work just fine.

I don't have a Roamio ... got a Premiere. They've just updated (substantially) the Youtube interface in the past 2 or 3 days. Messed up everything. I was getting that same error message when I tried to watch one particular video.

Are you getting this error when you try to watch a video?? If you are, try logging out of the Youtube application on your Tivo. Try launching again, you should get a message that you need to activate again. Go to this address on your computer http://www.youtube.com/activate and enter the activation code to link the two machines again.

If it's the same thing that happened to me, you're in between the old version and the new version of Youtube ... in other words Tivo's having a moment :GRIN:

A TiVo reboot sometimes cures V301 errors launching Apps.
Alternatively from TiVo Central enter the following sequence to reset the HDUI which also may fix it: Thumbs down, Thumbs up, play, play (This forces the TiVo to re-build list of Apps available for your TSN such that if you currently have a bad link it will fix it).

If you use kmttg you can launch YouTube on your Roamio from the Remote-Web tab using the following http url in kmttg:http://www.youtube.com/tv
(Series 4 users can also get the html5 version of YouTube by launching the above way).

Similar to YouTube it's a little sluggish on series 4 units but functional. So we might well get html version of Netflix along with YouTube on series 4 units when TiVo decides to flip the switch.
(I was wondering why on the Roamio it has "uiDestinationType":"flash", but that parameter is not needed at all and seems irrelevant given the special netflix uri - x-tivo:netflix).

How do I run the above RPC command: on the Roamio Pro, in an attempt to see if I can get Netflix to launch?

How do I run the above RPC command: on the Roamio Pro, in an attempt to see if I can get Netflix to launch?

Replace your current kmttg.jar with beta version in this zip file:https://drive.google.com/file/d/0B0S...it?usp=sharing
Then run kmttg and from Remote tab, Remote sub-tab press the "HME Jump" button with "Netflix (html)" as the selection to launch it.
(This also should work to run html version of Netflix on series 4 units).